Separable button.



No. 782,234. PATENTED FEB. 14, 1905. J. GIBSON.

SEPARABLE BUTTON.

APPLIOATION FILED JAN. 29, 1904.

WW5 171ml:

Patented February 14, 1905.

ATENT FFicE,

JOSEPH GIBSON, OF PETERBOROUGH, CANADA.

SEPARABLE BUTTON.

SPECIFICATION forming part of Letters Patent No. 782,234, dated February14, 1905.

Application filed January 29,1904. Serial No. 191,155.

To /r 1/-/1 om if 'nmq concern:

Be it known that I, Josuru GIBSON, watchmaker, of the town ofPcterborough, in the county of lcterborough, in the Province of Ontario,Canada, have invented certain new and useful Improvements in separableButtons. of which the following is a specification.

My invention relates to improvements in separable buttons or studs; andthe object of the invention is to devise a simple, durable,cheaply-made, and secure button of this class whereby a collar or otherarticle of apparel may be readily placed thereon and which when soplaced will not be liable to become unt'astened; and itconsists,essentially, of a button having a hollow base and stem protruding fromthe top thereof, the bottom of the hollow stem being provided with asemicircular cross-bridge having a recess and the top of the hollow stembeing beveled, and supplemental stem provided with a suitable head andhaving a segmental end provided with a laterally-extemling projection,such projection being designed to lit in the recess in the semicircularbridge when the parts are connected together, and a spring located inthe base and designed to hold the projection of the solid stem in therecess at the bottom of the hollow stem, the parts being otherwiseconstructed and arranged in detail, as hereinafter more particuhu'lyexplained.

Figure 1 is a perspective view of my button, portion of the base beingbroken away connected to the lower portion A by being 3 spun around thesame at the edge or in any other suitable manner.

A is the hollow stem, provided with a beveled upper portion 1/, wherebythe stem may be readily inserted in a buttonhole.

u a semicircular bridge located at the bot-tomot' the stem A insubstantially a plane with the top of the base The bridge a issubstantially semicircular and provided with a recess 1/ of any suitableform.

B is the solid stem, which is provided with a head and a segmental headI), having a lateral projection W. The segmental end or head and lateralprojection is in cross-sectional area slightly less than the opening atone side of the bridge 1/. In other words, it is made so that it willextend easily into such opening, and the stem is sulliciently long so asto force the projection 0 past the bottom of the bridge 1/, when by aslight'turn ot' the head 6 the recess b" may be brought into the recessa ll'hen so brought, the projection b being of corresponding depth tothe recess a", will necessarily bring the bottom surface of thesegmental cnd 6 flush with the bottom of the l )ridge 1/ when pressureis applied. Such pressure is applied by means of a curved Hat form ofspring C.

It will now be understood that in order to place a collar-button inposition ,I lirst press downwardly upon the head 6, then give it aquarter-turn until the segmental end is Forced by the spring( upwardlythrough the opening in the hollow stem at one side of the bridge 1/. Thestem A being beveled at the end maybe readily passed through thebuttonholes ot' the shirt and collar, or whatever the article orarticles may be, and the stem B restored in position by pressingdownwardly upon such stem and bringing it so that the segmental end 0'is brought through the opening at one side of the semicircular bridge,when the button maybe given a quarter-turn and the projection I)"brought into the recess u, the spring C being of course pressed upon inorder that this may be done and serving when it is done to hold the stemB rigidly in position.

From this description it will be readily seen l that my button isextremely simple and neoessarily cheap to manufacture and when securedin position is not likely to become disconnected.

VVhat I claim as my invention is l. A button comprising a hollow base, ahollow stem extending therefrom, a bridge-piece extending across theopening at the loWer end of the stem, said bridge-piece being ofsegmental form in respect to the interior of the hollow stem and havinga recess on its under side and a second stem having a head thereon andhaving its lower end cut away, leaving a segmental portion and aprojection extending therefrom, said segmental portion and projectionbeing Wholly Within the periphery of the second stem, the saidprojection being adapted to fit the recess on the under side of thebridge-piece, substantially as described.

2. In combination, the base having a hollow stem with a recessedbridge-piece extending across its interior, and a head having a sternprovided With a projection connected With the end face of the said stem,and extending in a direction transversely of the end face, the end ofsaid projection being Within the peripheral line of the stem, saidprojection being adapted to fit the recess in the bridge-piece.

3. A button comprising a base having a hollow stem, the end of said stembeing cut at an incline so as to form a point and a solid stem providedWith a suitable head and means for connecting the solid stem to thehollow stem.

JOSEPH GIBSON.

Witnesses:

H. WIGHTMAN, C. H. MooRn.

